virtualx-engine/scene/animation/animation_blend_tree.h
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

428 lines
13 KiB
C++

/**************************************************************************/
/* animation_blend_tree.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef ANIMATION_BLEND_TREE_H
#define ANIMATION_BLEND_TREE_H
#include "scene/animation/animation_tree.h"
class AnimationNodeAnimation : public AnimationRootNode {
GDCLASS(AnimationNodeAnimation, AnimationRootNode);
StringName animation;
StringName time = "time";
uint64_t last_version = 0;
bool skip = false;
public:
enum PlayMode {
PLAY_MODE_FORWARD,
PLAY_MODE_BACKWARD
};
void get_parameter_list(List<PropertyInfo> *r_list) const override;
static Vector<String> (*get_editable_animation_list)();
virtual String get_caption() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
void set_animation(const StringName &p_name);
StringName get_animation() const;
void set_play_mode(PlayMode p_play_mode);
PlayMode get_play_mode() const;
void set_backward(bool p_backward);
bool is_backward() const;
AnimationNodeAnimation();
protected:
void _validate_property(PropertyInfo &p_property) const;
static void _bind_methods();
private:
PlayMode play_mode = PLAY_MODE_FORWARD;
bool backward = false; // Only used by pingpong animation.
};
VARIANT_ENUM_CAST(AnimationNodeAnimation::PlayMode)
class AnimationNodeSync : public AnimationNode {
GDCLASS(AnimationNodeSync, AnimationNode);
protected:
bool sync = false;
static void _bind_methods();
public:
void set_use_sync(bool p_sync);
bool is_using_sync() const;
AnimationNodeSync();
};
class AnimationNodeOneShot : public AnimationNodeSync {
GDCLASS(AnimationNodeOneShot, AnimationNodeSync);
public:
enum MixMode {
MIX_MODE_BLEND,
MIX_MODE_ADD
};
private:
double fade_in = 0.0;
double fade_out = 0.0;
bool autorestart = false;
double autorestart_delay = 1.0;
double autorestart_random_delay = 0.0;
MixMode mix = MIX_MODE_BLEND;
/* bool active;
bool do_start;
double time;
double remaining;*/
StringName active = PNAME("active");
StringName prev_active = "prev_active";
StringName time = "time";
StringName remaining = "remaining";
StringName time_to_restart = "time_to_restart";
protected:
static void _bind_methods();
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
void set_fadein_time(double p_time);
void set_fadeout_time(double p_time);
double get_fadein_time() const;
double get_fadeout_time() const;
void set_autorestart(bool p_active);
void set_autorestart_delay(double p_time);
void set_autorestart_random_delay(double p_time);
bool has_autorestart() const;
double get_autorestart_delay() const;
double get_autorestart_random_delay() const;
void set_mix_mode(MixMode p_mix);
MixMode get_mix_mode() const;
virtual bool has_filter() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeOneShot();
};
VARIANT_ENUM_CAST(AnimationNodeOneShot::MixMode)
class AnimationNodeAdd2 : public AnimationNodeSync {
GDCLASS(AnimationNodeAdd2, AnimationNodeSync);
StringName add_amount = PNAME("add_amount");
protected:
static void _bind_methods();
public:
void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
virtual bool has_filter() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeAdd2();
};
class AnimationNodeAdd3 : public AnimationNodeSync {
GDCLASS(AnimationNodeAdd3, AnimationNodeSync);
StringName add_amount = PNAME("add_amount");
protected:
static void _bind_methods();
public:
void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
virtual bool has_filter() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeAdd3();
};
class AnimationNodeBlend2 : public AnimationNodeSync {
GDCLASS(AnimationNodeBlend2, AnimationNodeSync);
StringName blend_amount = PNAME("blend_amount");
protected:
static void _bind_methods();
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
virtual bool has_filter() const override;
AnimationNodeBlend2();
};
class AnimationNodeBlend3 : public AnimationNodeSync {
GDCLASS(AnimationNodeBlend3, AnimationNodeSync);
StringName blend_amount = PNAME("blend_amount");
protected:
static void _bind_methods();
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeBlend3();
};
class AnimationNodeTimeScale : public AnimationNode {
GDCLASS(AnimationNodeTimeScale, AnimationNode);
StringName scale = PNAME("scale");
protected:
static void _bind_methods();
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeTimeScale();
};
class AnimationNodeTimeSeek : public AnimationNode {
GDCLASS(AnimationNodeTimeSeek, AnimationNode);
StringName seek_pos = PNAME("seek_position");
protected:
static void _bind_methods();
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeTimeSeek();
};
class AnimationNodeTransition : public AnimationNodeSync {
GDCLASS(AnimationNodeTransition, AnimationNodeSync);
enum {
MAX_INPUTS = 32
};
struct InputData {
String name;
bool auto_advance = false;
};
InputData inputs[MAX_INPUTS];
int enabled_inputs = 0;
/*
double prev_xfading;
int prev;
double time;
int current;
int prev_current; */
StringName prev_xfading = "prev_xfading";
StringName prev = "prev";
StringName time = "time";
StringName current = PNAME("current");
StringName prev_current = "prev_current";
double xfade_time = 0.0;
Ref<Curve> xfade_curve;
bool from_start = true;
void _update_inputs();
protected:
static void _bind_methods();
void _validate_property(PropertyInfo &p_property) const;
public:
virtual void get_parameter_list(List<PropertyInfo> *r_list) const override;
virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;
virtual String get_caption() const override;
void set_enabled_inputs(int p_inputs);
int get_enabled_inputs();
void set_input_as_auto_advance(int p_input, bool p_enable);
bool is_input_set_as_auto_advance(int p_input) const;
void set_input_caption(int p_input, const String &p_name);
String get_input_caption(int p_input) const;
void set_xfade_time(double p_fade);
double get_xfade_time() const;
void set_xfade_curve(const Ref<Curve> &p_curve);
Ref<Curve> get_xfade_curve() const;
void set_from_start(bool p_from_start);
bool is_from_start() const;
double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeTransition();
};
class AnimationNodeOutput : public AnimationNode {
GDCLASS(AnimationNodeOutput, AnimationNode);
public:
virtual String get_caption() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
AnimationNodeOutput();
};
/////
class AnimationNodeBlendTree : public AnimationRootNode {
GDCLASS(AnimationNodeBlendTree, AnimationRootNode);
struct Node {
Ref<AnimationNode> node;
Vector2 position;
Vector<StringName> connections;
};
HashMap<StringName, Node> nodes;
Vector2 graph_offset;
void _tree_changed();
void _node_changed(const StringName &p_node);
void _initialize_node_tree();
protected:
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
virtual void reset_state() override;
public:
enum ConnectionError {
CONNECTION_OK,
CONNECTION_ERROR_NO_INPUT,
CONNECTION_ERROR_NO_INPUT_INDEX,
CONNECTION_ERROR_NO_OUTPUT,
CONNECTION_ERROR_SAME_NODE,
CONNECTION_ERROR_CONNECTION_EXISTS,
//no need to check for cycles due to tree topology
};
void add_node(const StringName &p_name, Ref<AnimationNode> p_node, const Vector2 &p_position = Vector2());
Ref<AnimationNode> get_node(const StringName &p_name) const;
void remove_node(const StringName &p_name);
void rename_node(const StringName &p_name, const StringName &p_new_name);
bool has_node(const StringName &p_name) const;
StringName get_node_name(const Ref<AnimationNode> &p_node) const;
Vector<StringName> get_node_connection_array(const StringName &p_name) const;
void set_node_position(const StringName &p_node, const Vector2 &p_position);
Vector2 get_node_position(const StringName &p_node) const;
virtual void get_child_nodes(List<ChildNode> *r_child_nodes) override;
void connect_node(const StringName &p_input_node, int p_input_index, const StringName &p_output_node);
void disconnect_node(const StringName &p_node, int p_input_index);
struct NodeConnection {
StringName input_node;
int input_index = 0;
StringName output_node;
};
ConnectionError can_connect_node(const StringName &p_input_node, int p_input_index, const StringName &p_output_node) const;
void get_node_connections(List<NodeConnection> *r_connections) const;
virtual String get_caption() const override;
virtual double process(double p_time, bool p_seek, bool p_is_external_seeking) override;
void get_node_list(List<StringName> *r_list);
void set_graph_offset(const Vector2 &p_graph_offset);
Vector2 get_graph_offset() const;
virtual Ref<AnimationNode> get_child_by_name(const StringName &p_name) override;
AnimationNodeBlendTree();
~AnimationNodeBlendTree();
};
VARIANT_ENUM_CAST(AnimationNodeBlendTree::ConnectionError)
#endif // ANIMATION_BLEND_TREE_H